Sperm CountSperm HeadSpermatozoaInfertility, MaleSperm MotilitySpermatogenesisSemenOligospermiaSemen AnalysisTestisEpididymisFertilityEjaculationSperm Injections, IntracytoplasmicSpermatidsTestosteroneSperm CapacitationReproductionOrgan SizeAzoospermiaAsthenozoospermiaAneuploidyLepidiumSperm-Ovum InteractionsSperm MaturationInsemination, Artificial, HomologousFertilizationContraceptive Agents, MaleGenitalia, MaleSemen PreservationSperm TransportLeukocyte CountSeminiferous TubulesInsemination, ArtificialFollicle Stimulating HormoneVaricoceleVasectomyAcrosomeMEDLARSPregnancySeminal Plasma ProteinsSperm MidpieceCD4 Lymphocyte CountPlatelet CountInfertilityLuteinizing HormoneSexual AbstinenceSperm BanksPregnancy RateInhibinsSeminal VesiclesChromosomes, Human, YPaternal ExposureGenital Diseases, MaleZona PellucidaEnvironmental PollutantsSexual MaturationTime FactorsHydrocarbons, BrominatedCell CountHypogonadismLitter SizeBlood Cell CountDenmarkSertoli CellsSeminiferous EpitheliumSexual Behavior, AnimalCryopreservationTesticular NeoplasmsSex Hormone-Binding GlobulinSperm Whale